A 21-year-old man died from injuries suffered in a collision between the motorcycle he was riding and a pickup truck at Maricopa/Casa Grande Highway and Maricopa Groves Parkway shortly before 6:30 p.m. Thursday.

Maricopa Police Department identified Charles Helton, 21, as the motorcyclist.

According to MPD, he was flown to Chandler Regional Medical Center in critical condition, where he later died.

“It is still under investigation to determine the cause,” said MPD spokesman Ricardo Alverado. “We had the Department of Public Safety come out last night and help us with measurements and diagrams.”

Alverado said officers are still planning to re-examine the scene and speak with witnesses to determine the cause of the crash.

He said the pickup was turning westbound onto the Maricopa/Casa Grande Highway from Maricopa Groves Parkway. Police believe Helton was traveling westbound on the highway at the time and the two collided near the intersection.

The Maricopa/Casa Grande Highway was closed from Plainview Street to Maricopa Groves for much of the night.

The crash remains under investigation and more information will be provided when it becomes available.